This cables allows you to connect your SportSync radio to the amplifier-receiver of your home theater system so that the delayed AM or FM audio received on the SportSync can be played through your home theater stereo speakers as you watch the game on your TV (and listen to the radio call of the game). Two RCA connectors plug into the Auxiliary jacks on your amplifier and the 3.5mm plug connects to the speaker jack on the SportSync. Note that the audio will not be true stereo but will come through both the left and right channels of your home theater system. Cable length is approximately 4.5 feet.